Home / 1,979,612.08-2,969,381.60-631,763.92

Finding the Fourth Proportional to 1,979,612.08, 2,969,381.60 and 631,763.92

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Solution

The fourth proportional to 1,979,612.08, 2,969,381.60 and 631,763.92 is: 947,634.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,612.08 : 2,969,381.60 = 631,763.92 : x
  2. Step 2: Convert to fraction form
    1,979,612.08/2,969,381.60 = 631,763.92/x
  3. Step 3: Cross multiply
    1,979,612.08x = 2,969,381.60 × 631,763.92
  4. Step 4: Simplify right side
    1,979,612.08x = 1,875,948,159,591.87
  5. Step 5: Solve for x
    x = 1,875,948,159,591.87/1,979,612.08
  6. Step 6: Final answer
    x = 947,634.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.